Danfoss 195N1063 VLT2830PT4B20STR1DBF00A00 Frequency Inverter
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Product Information
The Danfoss 195N1063 is a VLT 2800 family frequency inverter, model VLT2830PT4B20STR1DBF00A00, for variable-speed control of three-phase AC motors. This 3 kW, 4 hp drive accepts a 380-480 V AC three-phase supply and provides 7 A continuous output current with 4.8 kVA apparent power. It combines VVC+ voltage vector control and V/f scalar control in a compact IP20 enclosure, with an integrated Class 1 RFI filter and dynamic brake chopper.
Replacement commissioning requires more than fitting the inverter in the panel. The drive uses terminal-based digital inputs, analog inputs, a pulse input and a relay output, while its built-in RS-485 interface supports Danfoss FC Protocol and Modbus RTU at speeds up to 38400 bit/s. PROFIBUS DP and DeviceNet integration requires the appropriate option card. Parameters can be stored in four independent setups in internal non-volatile EEPROM and transferred through the built-in LCP display or Danfoss MCT 10 Setup Software with an RS-485 converter. Check the motor rating, 380-480 V supply, 7 A output requirement, communication option and braking configuration before commissioning a spare.
The built-in LCP 7-segment control panel displays fault codes, while Danfoss MCT 10 Setup Software, fieldbus register queries and RS-485 monitoring provide additional diagnostic access. The ON, WARNING and ALARM indicators distinguish control-card power and ready status, an active warning, and a trip that disables drive output. First-line checks depend on the displayed fault: inspect supply voltage and fuses for mains faults, control-terminal wiring for live-zero errors, motor and cable insulation for earth faults or short circuits, and the mechanical load and ramp settings for overload or overvoltage conditions. Internal inverter or control-board faults require repair or replacement of the unit.
Technical Specifications
| Manufacturer | Danfoss |
| Part number | 195N1063 |
| Model/type | VLT2830PT4B20STR1DBF00A00 |
| Component type | Frequency inverter |
| Product family | VLT 2800 |
| Rated motor power | 3 kW |
| Rated motor power | 4 hp |
| Rated apparent power | 4.8 kVA |
| Supply voltage | 380-480 V AC |
| Supply phases | 3 phase |
| Continuous output current | 7 A |
| Input current | 6.1 A |
| Control method | V/f scalar control and VVC+ voltage vector control |
| Braking function | Integrated dynamic brake chopper |
| RFI filtering | Integrated Class 1 RFI filter |
| Enclosure protection rating | IP20 |
| Mounting orientation | Side-by-side mounting without derating |
| Control connections | Digital inputs, analog inputs, pulse input, and relay output via terminal block |
| Serial interface | RS-485 via terminal strip |
| Serial communication speed | Up to 38400 bit/s |
| Built-in protocols | Danfoss FC Protocol and Modbus RTU |
| Optional fieldbus protocols | PROFIBUS DP and DeviceNet via option cards |
| Parameter set storage | 4 independent setups in internal non-volatile EEPROM |
| Lifecycle status | Discontinued |
Programming and Configuration
The VLT 2800 drive stores four independent parameter setups in internal non-volatile EEPROM. This allows parameter sets to be retained in the inverter and used during replacement commissioning.
Parameter backup and transfer can be performed through the built-in LCP display or Danfoss MCT 10 Setup Software. MCT 10 requires an RS-485 converter for connection to the drive. Before returning a spare to service, transfer the required parameter setup and confirm that the motor, control-terminal and communication settings match the existing installation.
Communication and System Integration
The drive provides an RS-485 serial interface via terminal strip. Built-in communication supports Danfoss FC Protocol and Modbus RTU, with communication speeds up to 38400 bit/s. The interface can be connected to a control or fieldbus system for drive control, parameter access and diagnostic register queries.
PROFIBUS DP and DeviceNet are available through the appropriate option card. When replacing a unit in a networked machine, match the required protocol and option-card arrangement, then check the RS-485 wiring and fieldbus communication state during commissioning.
Diagnostics and Status Indication
The built-in LCP 7-segment control panel displays fault codes from the frequency inverter. Danfoss MCT 10 Setup Software provides parameter and diagnostic reading, while fieldbus register queries and RS-485 communication monitoring provide diagnostic access through the connected control system.
The three status indicators separate ready, warning and trip conditions. An active ALARM condition disables drive output. For troubleshooting, use the displayed code together with checks of the mains supply, control-terminal wiring, fieldbus connection, motor cabling, insulation, mechanical load, ramp settings and braking function as applicable.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| ON | Green | Control card power supply is active and the unit is ready |
| WARNING | Yellow | An active warning condition is present before a drive trip occurs |
| ALARM | Red | A trip condition caused by a fault is present and drive output is disabled |
Replacement and Spare Part Considerations
The Danfoss 195N1063 is a discontinued VLT 2800 frequency inverter intended for maintaining existing installations. For a replacement, match the 195N1063 part number and VLT2830PT4B20STR1DBF00A00 model/type, then confirm the 380-480 V AC three-phase supply, 3 kW rating, 7 A continuous output current, IP20 enclosure and required communication arrangement.
Check the installed panel for the integrated Class 1 RFI filter, dynamic brake chopper and any PROFIBUS DP or DeviceNet option card requirements. The compact housing supports side-by-side mounting without derating, but the control-terminal wiring, RS-485 network connection and braking configuration must still match the machine installation.
A spare may require parameter transfer before it can run the motor correctly. Restore the required setup through the LCP display or Danfoss MCT 10 Setup Software with an RS-485 converter, then verify motor, control, communication and ramp parameters. For internal power-board, gate-drive or control-board faults, repair or a tested exchange unit is the practical route back to operation.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| 2 | Live zero error | Signal on terminal 53 or 60 is lower than 50% of the predefined minimum value | Wire break or missing analog input reference signal | Check the input signal source and wiring connections to the control terminals |
| 4 | Mains phase loss | A phase is missing on the supply side of the frequency converter | Mains supply phase imbalance or blown line fuse | Check mains voltage and supply circuit fuses |
| 7 | Overvoltage | DC link voltage exceeds the maximum safety threshold | Motor regeneration caused by a short deceleration time or high supply surge | Increase deceleration ramp time or check brake resistor function |
| 8 | Undervoltage | DC link voltage drops below the minimum operating threshold | Line voltage drop or temporary power outage | Check mains line voltage |
| 9 | Inverter overload | Frequency converter load exceeds 100% capacity for an extended period | Motor load is too high or the drive is undersized for the application | Reduce motor mechanical load or verify drive sizing |
| 10 | Motor thermistor | Motor thermistor protection has been triggered | Motor thermal overload or thermistor disconnection | Check the motor cooling fan, motor temperature, and thermistor wiring |
| 11 | Motor thermal protection | Electronic thermal relay protection has tripped due to calculated motor overload | Continuous high-load operation at low motor speeds | Check the motor mechanical load and ETR parameter settings |
| 12 | Current limit | Output current is higher than the configured parameter current limit | Excessive load torque or rapid acceleration | Increase acceleration time or inspect the driven mechanical system |
| 13 | Overcurrent | The inverter peak current limit has been exceeded | Output short circuit, earth fault, or extreme load shock | Inspect motor lead insulation, check motor windings for shorts, and inspect the mechanical load |
| 14 | Earth fault | Ground leakage current has been detected on the output phases | Ground fault in motor cabling or motor phase short to ground | Check motor cabling and motor insulation to ground with a megohmmeter |
| 16 | Short circuit | A short circuit is present at the motor terminals or inside the motor | Phase-to-phase short in motor wiring or motor fault | Check output motor connections and motor winding impedance |
| 34 | HPFB communication fault | Communication has failed between the control card and an optional fieldbus card | Fieldbus communication timeout or faulty option card connection | Check fieldbus cable connections and the master PLC bus communication state |
| 35 | Inrush fault | Mains voltage has been switched on too many times within a short period | Frequent cycling of the main line power supply contactor | Allow the unit to rest and limit mains power cycling to allowable intervals |
| 37 | Inverter fault | An internal hardware fault is present on the power board or gate drive | Internal power component damage or circuit board failure | Repair or replace the unit because an internal hardware fault is indicated |
| 38 | Internal fault | A microprocessor or memory communication error is present on the control board | Internal hardware or control board component failure | Replace the unit or return it for factory service |
Frequently Asked Questions
What is the Danfoss 195N1063?
The Danfoss 195N1063 is a VLT 2800 family frequency inverter, model VLT2830PT4B20STR1DBF00A00, rated for 3 kW, 4 hp and 7 A continuous output on a 380-480 V AC three-phase supply.
Which communication protocols are built into this VLT 2800 drive?
The drive has an RS-485 interface via terminal strip and supports Danfoss FC Protocol and Modbus RTU at speeds up to 38400 bit/s. PROFIBUS DP and DeviceNet require the appropriate option card.
How can parameters be transferred to a replacement drive?
Parameters can be stored in four independent setups in internal non-volatile EEPROM and transferred through the built-in LCP display or Danfoss MCT 10 Setup Software using an RS-485 converter.
What does the red ALARM indicator mean?
The red ALARM indicator means that a trip condition caused by a fault is present and drive output is disabled. The LCP 7-segment panel displays the related fault code.
What should be checked for fault code 7?
Fault code 7 indicates overvoltage when the DC link voltage exceeds the maximum safety threshold. Increase the deceleration ramp time or check the brake resistor function.
Can an internal inverter fault be corrected through machine wiring checks?
Fault code 37 indicates an internal power-board or gate-drive hardware fault, while fault code 38 indicates an internal control-board microprocessor or memory communication error. These conditions require repair, replacement or factory service of the unit.
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